Truck.



W. Z. HAIGHT.

TRUCK.

APPLIGATION FILED JULY 21,1910.

Patented Oct. 17, 1911;

W W m 'rn'greir.

To all whom il moyeonecr Be it known. that I, i l AQHEIQG'ION Z. Ji l/irons; a citizen of the United States, re-

on Honston,-.,in the county oi- Harris and Finite mil-ones, have invented eeriein .fiQll f-jailfl useful lli'rrorovemerits in Trucks, of-whieli -the following ie e specification.

lily? invention relates to new and useful 'imyrov en ents in trucks. I The objgeet of the invention is to provide 2. device of the character clescriloeo inolucl ing 3. bed frame supporieri upone see of ground wheels or spools in such a. manner. that the shock imparted; to said bed "frame by reason of the irreguleriti' oi" the surface over which the machine passes will beminiinizecl. Anoi-lier object ofthe invention resides in the provision of endless aprons upon which the supporting spools may travel, and which are (lesignecl to give a greater bearing surface for the traction mechanism. These ,eprons are further provided with engaging shoulders designed. ,to engage with the ground surface and prevent the slipping of Elie aprons in case of heavy draft.

l f iigh i e above and other objects in view IHY-wlflW/Qliilflh has particular relation to -min novel'fezitures oi oonstruction and opemjcion an example. of which is given in this specifiootion and illustrated in. the aceorm pmiying drawings, wherein Figure 1 is a plan View of my device, and

2 is a. side elevation thereof. l Referring now more periicularly to the drawings the numeral 1 refers to a bed friinie w icli is coniposcd' or'suitsble side and end members and is constructed in ,e. mannerbest designed to accomplish the (l esired results. This frame merely serves as a basefor the support and connection oi the various other parts. This frame is supported upon a. ma'li'n rear axle 2 end a from: axle 3. The rear axle is fixed rigidly to the bed frame and on the ends thereof are the pairs of levers 4; and 5 secured in such a manner as to be free to oscillateon said axle. Through the ends of these-levers, respec-' tively, are secondary axles numbered respeo tively, 6 and 7 mounted upon which are the respective sets of levers 8 and Q arrsnged so as to be free to oscillate on their respective axles. The lovers 8 and 9 carry by their respective ends tertiary axles 11 and 12 iq)on which the spools 13 and 14, respectively rotate. Mounted upon each end of paths on' W outer sides tiierei'rfi ,pedeci by the facifilial ii. inio porting surface. in; use on cleats 25 firmly low-n upon the ends of these levers are provie i7 and 18; upon which the front spools end. 20 rotate.

The general use of traction in is limited byiiie feet the; its n :i' on V soft soil snnci, snow, nmdyelen gronnui 12.118. in, slipperv places i because of the sli o m In iliis iiruei: bl l aise obomcies he. come by teasing-the in face of n'iiieiiis o er. less belts or 1 one 21, pass around their respeeive shown in line (ironing. Tl greoi'ly Li traction meoi an ion the lrneitior; 1 and the supporting when may run. 'fi lie'sprons referred; to numerals 9i and consist (new Sin chains carrying ii plurality of cleiiis ii i. 25. The numeral 26 refers to n. s'uiieliie m ior opcrniively ee .necleri with *1 iirive sin 27 carrying on. each end ri'oly sprocket Wheels 28 The two i of the respective trzicti apron run I to one]: other mean with Ellie by, and Hie o: s or bars, 25 are rin boll-ed. to said chains and exienrllseyonrl iii-e illlie (Elia; the spool izmges and an endl thus formed the uncle! sioie oiljviiiu inch-2 with the ground zixnlitl e spools 13 i4 roll over it easily Without sinking in. The top side of ihe apron operates rive-chain and pulls the epoois, loud. forward.

lreversed, thus smoothing clown my 3n} 'lzirities. EiUI-Zll followii'ig spool bl on has; :2. smooth level path on Wliieh to more. L ne end of each clout is turned upwnrii iownrd the axle of he spools, as e These turned on coils nlteri'iaielv nlaeeii I I WE theoiiisirle and inside oil the e and serve the purpose of engage with the ground inmoving and thus any slippage of the aprons will be prevented.

The traction aprons 21 and 22 lie upon the ground and conform to the irregularity thereof and the spools are free to move upon their respective apron and with four pairs of traction spools, as is used in this particular machine shown, any obstacle encountered by either of said spools singly, will operate to raise the machine only a, very small fraction of the height of the obstacle, owing to the free oscillating movement of the levers'supporting said spool upon the supporting axles of said levers.

A machine of the character described constructed in accordance with the foregoing specification and drawings accompanying the same will be found to move readily over any character of surface irrespective of its nature or irregularity, With comparative ease and smoothness and will not be so susceptible to sink into said surface or to be shocked by its movement thereover as machines of a sim lar character now in com-- mon use.

What I claim is 1. A device of the character described'ineluding a supporting frame mounted upon suitable supporting axles, a plurality of pairs of oscillating levers carried by one of said axles, each pair of said oscillating levers carrying at its extremity a pair of is" vers so connected thereto as to be capable of oscillating, rotatable flanged spools carried. by the last mentioned levers, endless belts or aprons passingaround said spools, upturned portions carried by said aprons adapted to act as guideways for the said spools, a motive mechanism carried by said frame and operatively connected with said aprons in such a manner as to impart rotation thereto, a pair of oscillating levers carried by each of the other axles and a plurality of rotatable spools carried by said levers for supporting said frame.

2. A device of the character described including a supporting frame mounted upon suitable supporting axles; a plurality of pairs of oscillating levers carried by one of said axles, each pair of oscillating levers carrying at its extremity a pair of levers so connected hereto as to be capable of oscillating; rotatable flanged spools carried. by the last mentioned. levers; endless belts or aprons passing around said spools; .upturned portions carried. by the free edges of said aprons adapted to act as guideways for the said spools; a motive mechanism carried by said frame and operatively connected with said apron in such a manner as to impart rotative motion thereto; a pair of oscillating levers carried by each of the other axles and a plurality of spools carried by said levers for supporting said frame substantially as described and for the purpose specified.

In testimony whereof I have signed my name to this specification in the presenceor" two subscribing Witnesses.

wasrnne'ron z. HAIG .r.

Witnesses J. W. YEAGLBY, H. S. BARKER. 

